No the F-14 can't be flown from the back seat. Also, it cannot be flow with only the pilot. As far as landing from the back seat is concerned, forward visibility isn't that bad and it would be possible on land but there is no way to do it on the boat. Landing on a 2-mile long, 300ft wide concrete slab is a piece of cake, the landing area on a CV is a little smaller and tends to move. As far as USAF backseaters having saved the airplane or crew, well, let's just say it's possible. Looking at it from a different perspective there are many, many documented examples of RIOs saving both themselves and their pilots with a timely ejection decision. The pilot's most famous last words are "I got it! I got it!" A skeptical RIO has saved the day many a time.